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by: Kleber Sacilotto de Souza The default iptables rules that come with most of the Enterprise Linux distributions (e.g. RHEL and SLES) prevent multicast IP packets from reaching client applications that have joined multicast groups. This article will explain how to configure or disable iptables so client multicast applications can receive multicast packets. Disabling iptables If your multicast client system doesn't need to be protected by a firewall the easiest way to make a multicast application to work is by disabling iptables or any... [More]